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The car that is traveling west at a constant rate has speed and velocity, but no acceleration.
A car that is traveling west at a constant rate has speed and velocity, but no acceleration.
The correct answer is: "Speed, but neither velocity nor acceleration."
Explanation:
To understand why, let's first define these terms:
1. Speed: Speed is the rate at which an object covers distance, measured in units such as miles per hour or meters per second. It tells us how quickly an object is moving.
2. Velocity: Velocity is the speed of an object in a given direction. It specifies both the speed and direction of motion.
3. Acceleration: Acceleration is the rate at which an object's velocity changes. It tells us how quickly an object's speed or direction is changing.
Now, let's analyze the given scenario: a car traveling west at a constant rate.
Since the car is moving at a constant rate, it means the car's speed remains consistent. Therefore, the car has speed because it is covering a certain distance in a given time.
However, since no information is provided about changes in direction or speed over time, we can conclude that the car has neither velocity nor acceleration. Velocity requires both speed and a specific direction, while acceleration requires a changing velocity.
Hence, the car has speed but neither velocity nor acceleration.